From a group of 10 children, a team of 5 (the red team) is randomly chosen. The remaining 5 children are in the blue team. Two of the children, Andy and Ollie, are best friends. What is the probability they get, to be on the same team? (the answer is 28/63, but I dont know how to get the top number)

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Q: You ask a friend to think of a number from 4 to 10. What is the probability that his number will be…

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Q: A coin and a die are tossed. Find the probability of getting: a. a head and a multiple of 2 b. a…

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Q: what is the probability that 2 will have no checkup, 3 will have 1 checkup, and 2 will have 2…

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Q: Suppose you have 10 tennis balls and you randomly pick some number of them. What is the probability…

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Q: Think of 12 face cards (four kings, four queens, and four jacks) from the four suits. What is the…

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A: The names of 9 boys. and 9 girls are in a hat. Total =18

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.